Automobile speed control method and device and pilotless automobile

A vehicle speed control and acceleration control technology, applied in the fields of devices and vehicle speed control methods, can solve the problems of inability to obtain a good control effect, delay in vehicle speed following, repeated oscillation of vehicle speed, etc. fast effect

Active Publication Date: 2017-09-29
地壳机器人科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Due to the nonlinear relationship between the vehicle speed and the speed, in the prior art, the linear proportional method to control the speed cannot obtain a good control effect
However, the use of traditional PID control is likely to cause repeated vibrations in the vehicle speed, and it will take a lot of time to set parameters in the process of speed control, so there is a delay in the reaction time of the general vehicle speed to the acceleration / deceleration, especially when starting. , During acceleration and deceleration, the PID control method may cause a delay in following the vehicle speed

Method used

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  • Automobile speed control method and device and pilotless automobile
  • Automobile speed control method and device and pilotless automobile
  • Automobile speed control method and device and pilotless automobile

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Embodiment Construction

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0051] At present, there is a delay in the response time of the general vehicle speed to the acceleration / deceleration, especially in the process of starting, accelerating and decelerating, the PID control method may cause a delay in following the vehicle speed. Based on this, the vehicle speed control method, device and unmanned vehicle provided by the embodiments of the present inv...

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Abstract

The invention provides an automobile speed control method and device and a pilotless automobile. The automobile speed control method includes: acquiring target automobile speed corresponding to a current driving road section of the automobile and actual automobile speed at current time moment of an automobile; determining an automobile speed difference value between the target automobile speed and the actual automobile speed; determining acceleration control increment of the current time moment according to the automobile speed difference value and a preset mode; determining automobile speed control quantity according to the acceleration control increment of previous time moment and the acceleration control increment of the current time moment; according to the automobile speed control quantity, controlling automobile driving. The technical problem of automobile speed follow-up time delay in the prior art is solved, and the automobile speed control method and device has the advantages that the automobile speed control quantity can be acquired by taking the target automobile speed and the actual automobile speed as input, vehicle driving can be controlled, operation speed is high, long-time parameter setting is not needed, automobile speed follow-up performance is good, and comfort, safety and stability of the automobile are improved.

Description

technical field [0001] The present invention relates to the technical field of unmanned vehicles, in particular to a vehicle speed control method and device and an unmanned vehicle. Background technique [0002] A driverless car is a kind of smart car, which can also be called a wheeled mobile robot. It mainly relies on the computer system-based smart driver in the car to realize driverless driving. The speed control of unmanned vehicle is one of the main control objects of unmanned vehicle control technology. Good speed followability is the basic guarantee for the comfort, safety and stability of unmanned vehicles. The speed control of different unmanned vehicles is different, and the speed control of the same unmanned vehicle is also different when the battery is different. [0003] Due to the non-linear relationship between the vehicle speed and the speed, in the prior art, it is impossible to obtain a good control effect by using a linear proportional method to control...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/14
CPCB60W30/143
Inventor 洪灿雄
Owner 地壳机器人科技有限公司
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