System for predicting ramp gradient and slope length in advance by using on-board pulsed laser radar

A pulsed laser and ramp technology, applied in the field of intelligent transportation, can solve problems such as difficulty in obtaining accurate values ​​of relevant parameters, lack of vehicle dynamics models, and complicated method principles, so as to save computing load, require low computing power, and reduce costs Effect

Active Publication Date: 2019-02-26
ZHEJIANG UNIV
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Problems solved by technology

These methods can meet the real-time requirements. At the same time, the reliability of the data obtained by the on-board sensors is high, and the system cost is low. However, the accuracy and real-time performance of slope observation depend on the accuracy and complexity of the selected dynamic model, and the relevant parameters in the dynamics are

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  • System for predicting ramp gradient and slope length in advance by using on-board pulsed laser radar
  • System for predicting ramp gradient and slope length in advance by using on-board pulsed laser radar
  • System for predicting ramp gradient and slope length in advance by using on-board pulsed laser radar

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[0048] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings. It should be noted that the specific implementation is only a detailed description of the present invention and should not be regarded as a limitation of the present invention.

[0049] A system of the present invention that uses pulse laser radar to predict the slope and slope length in advance, such as figure 1 As shown, it includes a hardware system and a software system, wherein the hardware system includes a vehicle-mounted pulse laser radar, a rotary joint system, a single-chip microcomputer, a Y-shaped support, a vehicle speed sensor, a tire pressure sensor, and a display; the software system includes a filtering module, a pulse laser radar control module, rotary joint control module, slope prediction mode selection module, slope length calculation module and slope length value selection module;

[0050] As a preferred method, s...

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Abstract

The invention discloses a system for predicting slope gradient and slope length in advance by using on-board pulsed laser radar. The system comprises a hardware system and a software system. The hardware system comprises an on-board pulsed laser radar, a rotary joint system, a single-chip microcomputer, a Y-shaped support, a vehicle speed sensor, a tire pressure sensor and a display. The softwaresystem includes a filter module, a pulsed laser radar control module, a rotary joint control module, a ramp prediction mode selection module, a gradient and slope length calculation module and a gradient and slope length value selection module. In a dynamic working condition of a vehicle, the system can realize prediction of gradient and slope length of a single ramp and a continuous ramp in advance, and accuracy is high, and calculation capability on a processor is low. Weight of the pulsed laser radar is light, volume is small, and the system is simple in operation and fast in speed.

Description

technical field [0001] The invention relates to the field of intelligent transportation, in particular to a system for predicting the gradient and length of a slope in advance by using a vehicle-mounted pulse laser radar. Background technique [0002] Slope prediction is one of the key technologies in advanced automotive technology, and is an important part of smart cars and autonomous driving technologies, such as anti-lock braking system (ABS), electronic automatic transmission technology (AMT), adaptive Accurate slope information is required in cruise control (ACC), direct shift transmission technology (DSG), hill start assist (HAC) and hill descent control (HDC). At present, in China, the slope of the ramp is estimated based on the fusion of multi-sensor information and the corresponding algorithm. Theoretically, this method is to measure the slope of the slope in real time. The disadvantage is that the slope length of the slope cannot be obtained. At the same time, due...

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Application Information

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IPC IPC(8): G01S17/88G01S17/48B60W40/076B60W40/06B60W40/105
CPCB60W40/06B60W40/076B60W40/105G01S17/48G01S17/88
Inventor 童哲铭刘浩童水光
Owner ZHEJIANG UNIV
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