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A safety distance estimation device and method

A technology of safe vehicle distance and estimation device, which is applied in the direction of control devices, vehicle parts, transportation and packaging, etc., which can solve the problems of over-large or too small safe distance between vehicles, so as to avoid excessively large or too small safe distance between vehicles, Improve the estimation accuracy and anti-collision probability, and the effect of reasonable estimation results

Active Publication Date: 2018-12-21
XIANGTAN UNIV
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Problems solved by technology

[0004] Aiming at the problem of too large or too small estimation of safe vehicle distance in the prior art, the present invention proposes a device and method for estimating safe vehicle distance

Method used

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  • A safety distance estimation device and method
  • A safety distance estimation device and method
  • A safety distance estimation device and method

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] The present invention provides a safety vehicle distance estimation device, which includes a storage module 1 for storing the preset driver's braking response time, driver's braking response time, own vehicle's braking deceleration, and the preceding vehicle's braking deceleration And the minimum safe distance that should be kept when the two vehicles are stationary;

[0036] The detection module 2 includes a sensor for detecting the speed of the vehicle and a radar for detecting the speed of the vehicle in front;

[0037] The simulation test module 3 is used to test the driver's perception characteristics, judgment charac...

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Abstract

A safety distance estimation device and method which can calculate the driver brake reaction time stored in the storage module by the calculation module, Driver Brake Response Time, Brake decelerationof the vehicle, Front brake deceleration, the minimum safety distance to be kept when the two vehicles are stationary and the estimated safety distance between the vehicle speed and the vehicle speedin front detected by the detection module, and further based on the perceptual characteristic value given by the simulation test module, Judging characteristic value and operating characteristic value, and correcting and estimating safety distance of vehicle type and driving road type obtained by judging module can effectively avoid that the estimated safety distance is too large or too small, which not only improves the accuracy of distance estimation and anti-collision probability of the system, but also ensures driving and riding comfort and driving efficiency.

Description

Technical field: [0001] The invention relates to the technical field of automobile safety, in particular to a device and method for estimating a safe distance between vehicles. Background technique: [0002] With the popularization of automobiles, traffic accidents are also increasing. In recent years, collision accidents have occurred frequently and frequently, and rear-end collisions account for more than 75% of collision accidents. Most of the car rear-end collision accidents are caused by factors such as excessive speed, too small distance between vehicles, and untimely braking. If the car's active collision avoidance system can make judgments, early warnings, and driving interventions in advance, it can improve driving safety. Being able to make accurate predictions is a crucial part of the vehicle's active collision avoidance system, and the predictions are closely related to the safe vehicle distance model. Among them, the safe inter-vehicle distance specifically re...

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Application Information

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IPC IPC(8): B60W40/10B60W30/095
CPCB60W30/0953B60W30/0956B60W40/10B60W2050/0075B60W2050/0082B60W2520/10B60W2554/804B60W2556/10
Inventor 姚湘胡鸿雁江奥
Owner XIANGTAN UNIV
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