Safety control method for driving heavy truck on long downhill

A technology for safety control and trucks, applied in the field of traffic safety, can solve problems such as restrictions, achieve strong continuous braking, improve driving safety, and reduce the probability of traffic accidents

Pending Publication Date: 2018-02-27
CHANGAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of the engine brake alone or the hydraulic retarder alone is limited by the applicable vehicle speed

Method used

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  • Safety control method for driving heavy truck on long downhill
  • Safety control method for driving heavy truck on long downhill
  • Safety control method for driving heavy truck on long downhill

Examples

Experimental program
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Embodiment Construction

[0046] The present invention will be further described below in conjunction with the accompanying drawings.

[0047] see figure 1 and figure 2 , the present invention comprises the following steps:

[0048] Step 1, when the truck enters the ramp, the vehicle collects the vehicle speed v and the engine speed n of the vehicle through the engine speed sensor and the vehicle speed sensor;

[0049] Step 2, the central processing unit calculates the slope, and performs a safe speed warning through the alarm module. When the actual speed of the truck exceeds the safe speed v 1 , the central processor controls the alarm module to prompt the driver, and is ready to activate the auxiliary braking equipment, which includes engine braking and two hydraulic retarders;

[0050] Step 3: The driver judges the driving situation on the road, and manually selects the control function of the controller according to the complex situation of the road environment. When the slope is long, the tra...

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PUM

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Abstract

The invention discloses a safety control method for driving a heavy truck on a long downhill. The method includes then steps of measuring the truck speed and the rotate speed of an engine by using a sensor to collect truck traveling information, and then by using a central processing unit to calculate and obtain gradients, giving a safety truck speed warning prompt according to different gradientconditions and safety speed technology requirements; when the actual speed of the truck exceeds a safety truck speed warning, reminding to enable auxiliary braking equipment. According to the method,an engine brake and a hydrodynamic retarder are used synthetically, a strong continuous braking function within a wide range of the truck speed is achieved, and the needs of the long big downhill segments of different roads can be met, so that the status that continuous use of a wheel brake of the heavy truck during long downhill driving leads to overheating and failure of the brake is greatly improved, and the probability of traffic accident involvement is decreased; moreover, through the common control of manual selection and the central processing unit, the possibility of misoperation is reduced, and the safety of driving is improved.

Description

technical field [0001] The invention relates to the field of traffic safety, in particular to a safety control method for heavy trucks descending long slopes. Background technique [0002] Actual road driving experience shows that continuous use of wheel brakes on long downhill sections of heavy goods vehicles will cause the brakes to overheat and fail. A slow braking system must be used to keep the vehicle speed controllable and ensure that the wheel brakes are in a cold state to prepare for deceleration in curves. and other emergency conditions effective braking. From the perspective of safe driving, the importance of the safety of trucks going down long slopes cannot be ignored, but most of the heavy trucks are only equipped with wheel brakes, which cannot meet the continuous braking function of a wide speed range. Therefore, when a heavy truck goes down a long slope, if other brake types can be installed on the truck, the braking effect will be greatly improved. Howeve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K31/18B60Q9/00B60T7/12
CPCB60T7/12B60K31/18B60Q9/00
Inventor 肖润谋闫晟煜赵峻梅寒彭飞高娟
Owner CHANGAN UNIV
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